uart.h

以前做的一个仿PLC程序

/*****************************************************************************
 *   uart.h:  Header file for NXP LPC17xx Family Microprocessors
 *
 *   Copyright(C) 2009, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2009.05.27  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#ifndef __UART_H 
#define __UART_H

#define IER_RBR		0x01
#define IER_THRE	0x02
#define IER_RLS		0x04

#define IIR_PEND	0x01
#define IIR_RLS		0x03
#define IIR_RDA		0x02
#define IIR_CTI		0x06
#define IIR_THRE	0x01

#define LSR_RDR		0x01
#define LSR_OE		0x02
#define LSR_PE		0x04
#define LSR_FE		0x08
#define LSR_BI		0x10
#define LSR_THRE	0x20
#define LSR_TEMT	0x40
#define LSR_RXFE	0x80

//#define BUFSIZE		0x40

extern uint32_t UARTInit(uint32_t portNum, uint32_t Baudrate );
//extern void UART0_IRQHandler( void );
//extern void UARTSend(uint8_t *BufferPtr,uint32_t Length);
extern void PLC_UART_SEND(char data);
extern void UARTSend2(void);
//extern volatile uint32_t UART0Count;
//extern volatile uint8_t UART0Buffer[BUFSIZE];

#endif /* end __UART_H */
/*****************************************************************************
**                            End Of File
******************************************************************************/